The present invention relates to a device for optional activation of a vertical-axis propeller to be configured on the lower surface of a marine vessel, said device comprises a vertical-axis propeller; a sliding means associated with the lower surface of the marine vessel and sliding the vertical-axis propeller; at least one slider that is associated with the vertical-axis propeller and is in sliding relation with the sliding means; and at least one driving means for driving the vertical-axis propeller in upwards and downwards in the sliding direction.


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    Title :

    RETRACTABLE VERTICAL-AXIS PROPELLER DEVICE


    Contributors:

    Publication date :

    2019-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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